clang/test/C/C99/n696.c

   1 // RUN: %clang_cc1 -triple x86_64 -verify %s
   2
   3 /* WG14 N696: yes
   4  * Standard pragmas - improved wording
   5  *
   6  * NB: this also covers N631 which changed these features into pragmas rather
   7  * than macros.
   8  */
   9
  10 // Verify that we do not expand macros in STDC pragmas. If we expanded them,
  11 // this code would issue diagnostics.
  12 #define ON 12
  13 #pragma STDC FENV_ACCESS ON
  14 #pragma STDC CX_LIMITED_RANGE ON
  15 #pragma STDC FP_CONTRACT ON
  16
  17 // If we expanded macros, this code would not issue diagnostics.
  18 #define BLERP OFF
  19 #pragma STDC FENV_ACCESS BLERP      // expected-warning {{expected 'ON' or 'OFF' or 'DEFAULT' in pragma}}
  20 #pragma STDC CX_LIMITED_RANGE BLERP // expected-warning {{expected 'ON' or 'OFF' or 'DEFAULT' in pragma}}
  21 #pragma STDC FP_CONTRACT BLERP      // expected-warning {{expected 'ON' or 'OFF' or 'DEFAULT' in pragma}}
  22